PMID-sentid Pub_year Sent_text comp_official_name comp_offsetprotein_name organism prot_offset 8739236-1 1996 Heme oxygenase (HO) isozymes, HO-1 and HO-2 catalyze the cleavage of heme b to form the antioxidant biliverdin IXa, iron and the putative cellular messenger carbon monoxide (CO). biliverdin 100-114 heme oxygenase 1 Sus scrofa 30-34